RK73G1HTTC1600D Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC1600D is a 160 Ohms ±0.5% chip resistor rated at 0.05W (1/20W) in 0201 package format (0.60mm x 0.30mm metric). This component is manufactured by KOA Speer Electronics, Inc. and complies with automotive AEC-Q200 standards using thick film composition technology.

The RK73G1HTTC1600D carries a product status of "Not For New Designs," indicating that KOA Speer Electronics has transitioned this part number to obsolescence or limited production. For new design implementations and ongoing procurement, identifying equivalent substitute parts with active product status is necessary to ensure long-term supply chain reliability and design continuity.

Substiute Parts

RK73G1HTTC1600D

KOA Speer Electronics, Inc.In Stock: 968RK73G1HTTC1600D Datasheet

Current PartRFQ

RK73G1HTTCM1600D

KOA Speer Electronics, Inc.In Stock: 998RK73G1HTTCM1600D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73G1HTTC1600D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 160 Ohms (exact match required)
• Tolerance: ±0.5% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Temperature coefficient: ±50ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)

Mechanical Parameters:

• Package format: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)

Compliance & Certification:

• Automotive AEC-Q200 rating (exact match required)
• RoHS3 compliance (exact match required)
• Moisture Sensitivity Level 1 (exact match required)

Substitute parts must maintain identical electrical performance, mechanical compatibility, and automotive qualification standards. The primary distinction between the main part and substitute parts is product status and packaging designation.

Parameter Comparison

Engineering Selection Recommendations

For New Design Implementation: The RK73G1HTTCM1600D is the recommended substitute for new circuit designs. This part number maintains identical electrical and mechanical specifications while carrying an "Active" product status designation. Active status ensures ongoing manufacturing support, extended supply chain availability, and compliance with current automotive qualification standards.

For Existing Design Maintenance: The RK73G1HTTC1600D remains functionally equivalent and may be used for repair, rework, or maintenance of existing assemblies where inventory is available. However, long-term procurement planning should transition to the RK73G1HTTCM1600D to avoid supply discontinuation.

Compliance Assurance: Both part numbers satisfy AEC-Q200 automotive qualification requirements, ROHS3 environmental compliance, and unlimited moisture sensitivity classification. Selection between these parts should be based on design phase (new versus existing) and supply chain strategy rather than technical performance criteria.

Frequently Asked Questions (FAQ)

Q: Can RK73G1HTTCM1600D be used as a direct replacement for RK73G1HTTC1600D in existing assemblies?

A: Yes. Both parts are electrically and mechanically identical. They share the same resistance value (160 Ohms), tolerance (±0.5%), power rating (0.05W), package format (0201), temperature coefficient (±50ppm/°C), and operating range (-55°C ~ 155°C). Substitution is valid for repair and rework operations.

Q: What is the significance of the "Not For New Designs" status on RK73G1HTTC1600D?

A: This designation indicates that KOA Speer Electronics has discontinued active development and long-term production commitment for this part number. New circuit designs should specify RK73G1HTTCM1600D to ensure supply continuity and manufacturer support throughout the product lifecycle.

Q: Are there any package or form factor differences between these part numbers?

A: No. Both parts use identical 0201 package format (0603 metric equivalent), with dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). They are mechanically interchangeable on PCB layouts.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both RK73G1HTTC1600D and RK73G1HTTCM1600D are AEC-Q200 qualified thick film chip resistors suitable for automotive applications. They maintain identical temperature performance and reliability ratings across the -55°C ~ 155°C operating range.

Q: What is the difference between the part numbers RK73G1HTTC1600D and RK73G1HTTCM1600D?

A: The primary difference is the inclusion of the "M" designation in RK73G1HTTCM1600D, which indicates an active product status variant. The "M" suffix reflects KOA Speer Electronics' current production line designation. All electrical, mechanical, and compliance specifications remain identical.